Terminal connecter



E. L. BENSON 7 1,713,735

TERMINAL CONNECTER Filed Feb. 3, 1 926 Patented May 21, 1929.

. wane UNITED STATES PATENT aFFic I EDWARD L. BENSON, OF NEW LONDON, CONNECTICUT.

TERMINAL Application filed February of various-dimensions without in any way damaging the parts of the connector or disfiguring the exposed or contacting parts, of the terminals.

Second; to provide a connecter of such a Construction in which the conducting or cable wires are easily and properly connected thereto and without interfering with the operations during the clamping and unclamping of the connector to the terminals.

Third; to so construct and arrangethe parts of the connecter so that the terminal connections or clamping element can be positively and quickly dislodged or disengaged from the terminal of the battery without the use of a hammer or hitting action and all operations for the clamping and unclamping of the connecter from the terminal 7 are capable of being carried out without danger of short-,circuiting the battery.

I having all the attributes of construction and advantages of operation above pointed out and capable of being manufactured at a minimum of cost and at the same time being possessed of maximum durability.

Fifth; other advantages of construction and operation will appear from the detailed Fourth; to provide a terminal connecter' In the drawings, in which similar referconnncrna.

e, 1926. Serial m. 85,673.

spring from the elongated projection 11 for purposes to be presently described.

Cast integral and extending from the end 11 of split ring 10 isprovided a lug 15 having a shoulder 16, as shown, and said lug is cast or bored with an unthreaded opening 17 Theother end 12 of the split ring 10 is also provided with a similar lug 18 vprovided with a threaded opening 19, and the axes of the unthreaded opening 17 and the threaded opening 19 are so constructed and arranged to be substantially in alinement' with each other, as illustrated in Figure 1, and the plane of the shoulder 16 is substan tially normal to the axes of said threaded openings 17 and 19.

I 20 is a bolt having at one end a head 21 and vat its other'end a threaded section 22,

and said bolt is so disposed and arranged that its threaded section or end 22 engages the threaded opening 19 of thelug 18 and the unthreaded or shank portion of the bolt 20 passes loosely and with clearance through the unthreaded opening 17, and its head 21 is adjacent to the outer side of the lug 15 and also in proximity to the shoulder 16 of said lug l5. a I

The elongated projection 14 on the op- I posite side of the split ring 10 from that of its separated ends 11 and 12 is provided with an opening or socket 23 extending entirely through and .is composed of a cylindrical portion 24 and an outwardly flaring portion 25 which abut at their-inner ends to form a shoulder 26. I p

The manner of securely holding the end of a conductor 27 is accomplished by removing the insulation at the end of the conductor the same distance as the depth of the flaring portion 25 of the opening 23, and

insert the end section of the conductor 27 into the opening 23 so that exposed edge 28 of the insulation rests against the shoulder 26 within the opening 28, as clearly shown in Figure 1. After the end of conductor 27 is inserted, as described, the exposed wires "29 within and at the end of the conductor I are separated and solder 30 is introduced .and made to unite the wires and entirely fill the spacebetween said wires 29 and inner wall of the flaring portion 25 of the opening 23, as is common in this class of inventions and'will be readily seen provides a cheap construction vfor properly securing a conductor to a connecter, and not only in sures the non-corrosion of the exposed end of the conductor but at the same time the the invention is as follows:

If it is desired to attach the connect-er to the terminal of a battery, a pair of pliers are made to grip the head 21 of the bolt and said head 21 is turned in the proper direction to give sufficient clearance between the inner edge of the head 21 and the outer edge of the lug 15 to permit the ends 11 and 12 to be sufiiciently separated and the opposite concave surfaces 13 to encircle and firmly embrace or fit about the tapered end or cylindrical terminal or post .31, shown in dotted lines. To properly adjust the distance between the concave surfaces 13 and 13 or size of the circular opening of the split ring 10 to receive said post 31, the separated jaws of the pliers are then so operated as to have the inner face of one of the jaws abut against the inner edge of the shoulder 16, while the inner face of the'other jaw of the pliers abuts or engages the outefside of the head 21, and on closing the jaws of the pliers the lug 15 due to the plane of its shoulder 16 being normal to the coincident axes of the unthreaded opening 17 and bolt 20, said lug 15 will readily moverand without frictional engagement with said bolt 20, and the distance between the two lugs 15 and 18 is increased and, hence, the two ends 11 and 12 and concave surfaces 13 and 13 are correspondingly separated, as will be readi- 4 ly understood.

After the connecter has been properly adjusted and seated on the end of the battery terminal or post 31, the pliers are made to engage the head 21 of the bolt 20 and said head is so turned or rotated as to bring by the cooperation of the threaded end 22 with threaded opening 19 the inner edge of the bolt head 21 against the outer and adjacent surface of the lug 15 and oncontinuing said operation or turning of the head 21, the lug 15 is forced towards the lug 18 and cause the concave surfaces 13, 13, of the split ring 10 to firinly grip the battery terminal or post 31 and rigidly clamp or secure the connecter with the battery and its terminal, as will be readily understood.

To release or unclamp the connector from the terminal of the battery, the vhead 21 of the bolt 20 is turned in the opposite direction from above disclosure and said head will assume the position shown in'Figure 1, and shouldthe clamping or concave surfaces 13 and 13 be not entirely released or free from the battery terminal or post 31, the above described adjustment and manipulation of the plier jaws with respect to the head 21 and shoulder 16 can be repeated, said plier jawsare disposed so that the inside of one. jaw reacts on the outer side of the head 21 while the inner side of the other jaw reacts against the inner side of the shoulder 16 in order to'permit the connector to be quickly and safely removedwithout injury to the connecter orbattery terminal.

From the foregoing disclosure of the construction and arrangement of the improvement and mode of applying the same, it will be seen that all the objects and advantages recited in the statement of invention have been fully and efficiently carried out, and while 1 have shown and described my preferred form of the 'improved' connecter, many changes will readily suggest themselves without in any way departing from.

the salient features herein disclosed and embodied in the scope of the claim.

lVhat ll claim is:

' lln a battery clamp, a split ring having two lugs'extending an equal distance therefrom and substantially parallel to each other and aligned openings in said lugs, one of said lugs having a cut away portion on its free cnd and on the face thereof nearest to the other lug, said cut away portion being of substantially great depth in two directions, longitudinally and transversely, so that when the twolugs abut each other they pre sent shoulders or abutments of such asize and of such a distance from each other that an implement inserted between said shoulders may force said lugs apart.

In testimony whereof I affix my signature.

EDWARD L. BENSON. 

